A novel surface emitting GaAs/AlGaAs laser diode beam steering device based on surface mode emission

A. Köck, C. Gmachl, E. Gornik, M. Rosenberger, C. Thanner, L. Korte

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We present a novel surface-emitting GaAs/AlGaAs laser diode beam steering device, which is based on a surface mode emission process. The coupling of the laser mode to a surface mode results in surface emission with a beam divergence of 0.4°, which is steerable at a rate of dα/dλ=-0.245°/nm by a tuning of the laser emission wavelength. The continuous control of the surface mode dispersion by external parameters allows a definite adjustment of the emission angle. In addition, the feedback of the surface mode to the laser mode provides a kind of single mode operation.

Original languageEnglish (US)
Pages (from-to)836-838
Number of pages3
JournalApplied Physics Letters
Volume64
Issue number7
DOIs
StatePublished - Dec 1 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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